Submission

Score: 100

User: PutterThecityboy

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-05 19:59:49

#include <iostream>
using namespace std;
int main(){
    char s[1005];
    cin >> s;
    int n = 0;
    while (s[n] != 0){
        n++;
    }

    char mn;
    bool found = false;

    for (int i = 0; i < n; i++){
        int cnt = 0;
        for (int j = 0; j < n; j++){
            if (s[j] == s[i]){
                cnt++;
            }
        }

        if (cnt == 1){
            if (!found || s[i] < mn){
                mn = s[i];
                found = true;
            }
        }
    }

    cout << mn;

    return 0;
}